Mensurationmedium · Past Paper
A well of diameter 2 m is dug 14 m deep. The earth taken out is spread evenly to form a platform 5 m by 2 m. Find the height of the platform.
A4.4 m
B2.2 m
C8.8 m
D1.1 m
✓ Correct Answer: A — 4.4 m
Vol_earth = πr²h = (22/7) × 1² × 14 = 44 m³. Platform Vol = 5 × 2 × H = 44. H = 4.4 m.
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